Blue Steel™ is a cool, silver hair dye with blue undertones that delivers a striking metallic finish. This shade works best on hair lightened to level 10 blonde or lighter. Pre-tone any yellow undertones before application to achieve the desired cool silver-blue result and avoid unwanted warm hues. As a pastel and toner formula, Blue Steel™ contains less pigment than vivid shades, which means it will fade gradually from your hair over time. Plan for touch-ups to maintain the cool metallic effect. Perfect for those seeking a premium, editorial silver-blue look with depth and dimension.